{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T11:32:32Z","timestamp":1740137552262,"version":"3.37.3"},"reference-count":21,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2018,5,8]],"date-time":"2018-05-08T00:00:00Z","timestamp":1525737600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Pacing Clinical Electrophis"],"published-print":{"date-parts":[[2018,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>The impact of left atrial (LA) size on isolation area (ISA) using a 28\u2010mm second\u2010generation cryoballoon (CB) in the acute phase after pulmonary vein isolation (PVI) and the differences of CB from contact force\u2010guided radiofrequency (RF) ablation have not been fully investigated.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>We examined 85 consecutive patients (CB group, 35; RF group, 50) with drug\u2010refractory paroxysmal atrial fibrillation who underwent their first PVI procedure at two institutions. We evaluated ISA after PVI using 3D\u2010Merge computed tomography images (GE Healthcare, Little Chalfont, UK) and high\u2010resolution electroanatomical mapping.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Total ISA was significantly smaller in the CB group (20.6\u00a0\u00b1\u00a06.0 cm<jats:sup>2<\/jats:sup>) than in the RF group (29.0\u00a0\u00b1\u00a07.1 cm<jats:sup>2<\/jats:sup>; P<jats:italic>\u00a0<\/jats:italic>&lt;\u00a00.0001). In the CB group, ISA of the left pulmonary vein (LPV), right pulmonary vein (RPV), and total ISA were not correlated with the left atrial surface area (LASA). The ratios of ISA to LASA (%ISA) of LPV and total ISA negatively correlated with LASA in the CB group (LPV: r<jats:italic>\u00a0<\/jats:italic>=<jats:italic>\u00a0<\/jats:italic>\u22120.4001, P<jats:italic>\u00a0<\/jats:italic>=<jats:italic>\u00a0<\/jats:italic>0.0173; total ISA: r<jats:italic>\u00a0<\/jats:italic>=<jats:italic>\u00a0<\/jats:italic>\u22120.4733, P<jats:italic>\u00a0<\/jats:italic>=<jats:italic>\u00a0<\/jats:italic>0.0041). In contrast, in the RF group, ISA of LPV, RPV, and total ISA positively correlated with LASA; (LPV: r<jats:italic>\u00a0<\/jats:italic>=<jats:italic>\u00a0<\/jats:italic>0.5155, P<jats:italic>\u00a0<\/jats:italic>=<jats:italic>\u00a0<\/jats:italic>0.001; RPV: r<jats:italic>\u00a0<\/jats:italic>=<jats:italic>\u00a0<\/jats:italic>0.6398, P<jats:italic>\u00a0<\/jats:italic>&lt;\u00a00.0001; total ISA: r<jats:italic>\u00a0<\/jats:italic>=<jats:italic>\u00a0<\/jats:italic>0.7299, P\u00a0&lt;\u00a00.0001).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>ISA created using CB was significantly smaller than that using RF and did not change regardless of LASA increment. Differences in ISA between the two groups became more prominent in the large atrium.<\/jats:p><\/jats:sec>","DOI":"10.1111\/pace.13337","type":"journal-article","created":{"date-parts":[[2018,3,31]],"date-time":"2018-03-31T11:43:36Z","timestamp":1522496616000},"page":"700-706","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Impact of left atrial size on isolation area in the acute phase of pulmonary vein isolation using 28\u00a0mm cryoballoon"],"prefix":"10.1111","volume":"41","author":[{"given":"Akio","family":"Chikata","sequence":"first","affiliation":[{"name":"Division of Cardiology, Department of Internal Medicine Toyama Prefectural Central Hospital  Toyama Japan"},{"name":"Department of Cardiology, National Hospital Organization Kanazawa Medical Center  Kanazawa Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4108-5525","authenticated-orcid":false,"given":"Takeshi","family":"Kato","sequence":"additional","affiliation":[{"name":"Department of System Biology Kanazawa University Graduate School of Advanced Preventive Medical Sciences  Kanazawa Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kazuo","family":"Usuda","sequence":"additional","affiliation":[{"name":"Division of Cardiology, Department of Internal Medicine Toyama Prefectural Central Hospital  Toyama Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shuhei","family":"Fujita","sequence":"additional","affiliation":[{"name":"Department of Pediatrics Toyama Prefectural Central Hospital  Toyama Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michiro","family":"Maruyama","sequence":"additional","affiliation":[{"name":"Division of Cardiology, Department of Internal Medicine Toyama Prefectural Central Hospital  Toyama Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yoshiki","family":"Nagata","sequence":"additional","affiliation":[{"name":"Division of Cardiology, Department of Internal Medicine Toyama Prefectural Central Hospital  Toyama Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Satoru","family":"Sakagami","sequence":"additional","affiliation":[{"name":"Department of Cardiology, National Hospital Organization Kanazawa Medical Center  Kanazawa Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Naomi","family":"Kanamori","sequence":"additional","affiliation":[{"name":"Department of Cardiology, National Hospital Organization Kanazawa Medical Center  Kanazawa Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Takanori","family":"Yaegashi","sequence":"additional","affiliation":[{"name":"Department of Cardiology, National Hospital Organization Kanazawa Medical Center  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